# coding:utf8

import url_manager,html_downloader,html_parser,html_outputer

class Spider_main(object):
    def __init__(self):
        self.url=url_manager.UrlManager()
        self.downloader=html_downloader.HtmlDownloader
        self.parser=html_parser.HtmlParser
        self.output=html_outputer.HtmlOutputer

    def craw(self, root_url):
        count=1
        self.url.add_new_url(root_url)
        while self.url.has_new_url():
            try:
                new_url= self.url.get_new_url
                print "craw %d : %s" %(count, new_url)
                html_cont=self.downloader.download(new_url)
                new_urls, new_data=self.parser.parse(new_url,html_cont)
                self.url.add_new_urls(new_url)
                self.outputer.collect_data(new_data)
                
                if count == 1000:
                    break

                count = count+1
            
            except:
                print 'craw failed'


if __name__== "__main__":
    root_url="http://baike.baidu.com/item/%E9%B9%BF%E6%99%97"
    obj_spider = Spider_main()
    obj_spider.craw(root_url)   #调用入口Html
